How did you do this with the nightly build (which you report did work)? Please provide details about that, and also explain what method or methods you've tried for installing Aurora. This should make it possible to identify specifically the differences that are causing one way to succeed and the other to fail.
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Eliah KaganOct 21 '12 at 20:29

for install the nightly build version I have used this command :sudo add-apt-repository ppa:ubuntu-mozilla-daily/ppa sudo apt-get update sudo apt-get install firefox-trunk and in the aim ton install firefox-aurora I have add this PPA sudo add-apt-repository ppa:ubuntu-mozilla-daily/firefox-aurora
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Ko JiefOct 22 '12 at 19:03

I just try the stefan way and it works very well, I just add a new entry in the launcher with alacarte. Thank you both.
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Ko JiefOct 22 '12 at 19:51